作者: Julimar do Sacramento Ribeiro , Lúcio Flávio Macedo Mota , Tobyas Maia de Albuquerque Mariz , Maria Edivania Ferreira da Silva , Dorgival Morais de Lima Júnior
DOI:
关键词:
摘要: This study aimed at evaluating the performance of Nelore cattle during growth classified for different classes frame size regarding body weights and morphometric measures ages. Weights bulls up to 1 year age were monthly recorded. The characteristics evalu- ated birth weight, 120, 205, 240 365 days age, withers height rump height, thoracic perimeter, distance between pin bones, hip bones chest width, depth chest, space under sternal length. Frame scores as medium, large extreme, estimated using equations tables according Beef Improvement Federation (BIF). Data subjected analysis variance Tukey -Kramer test 5% probability analyses performed by canonical variables grouping genotype method Tocher. animals with larger class heavier measurements well, when compared smaller class. correlation weight ages higher. correlates features positively, indicating that gain increased their influence on size. Cluster resulted in three distinct genetic groups have similar within group divergence them.